<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
    </head>
    <body>
    <form action="<{:U('login')}>"  method="post">
        <input type="text" name="user" >
        <input type="password" name="pwd" >
        <input type="submit" value="提交">
    </form>
    </body>
</html>